Functions: Frequency pulse, magnetic effect, heating function, high frequency vibration massage and circular traction. Neck massager: Get an electric pulse neck massager. Power: USB charge, maximum power 5W. Health benefits: Aims to promote blood circulation, improve sleep quality and soothe nerves. Modes: one heating option, six vibration patterns and 16 intensity settings. Colours: Choice of white, blue and pink. Electric Pulse Neck Massager | Blue | Living Social